#339BB5#339BB5

#339BB5 is a light, moderate cyan. Relative luminance 0.275; OKLCH L 64.2% C 0.100 H 218.1°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#339BB5
RGB	rgb(51, 155, 181)
HSL	hsl(192, 56%, 45%)
HSV	hsv(192, 72%, 71%)
CMYK	cmyk(71.8%, 14.4%, 0%, 29%)
CIE-LAB	lab(59.42, -20.78, -22.06)
CIE-LCH	lch(59.42, 30.31, 226.71°)
OKLab	oklab(64.18% -0.0785 -0.0616)
OKLCH	oklch(64.18% 0.1 218.1)
XYZ	xyz(21.4236, 27.4802, 47.8822)
Luminance	0.2748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#339BB5 #B54D33

analogous

#33B58E #339BB5 #335AB5

triadic

#339BB5 #B5339B #9BB533

tetradic

#339BB5 #8E33B5 #B54D33 #5AB533

square

#339BB5 #8E33B5 #B54D33 #5AB533

split-complementary

#339BB5 #B5335A #B58E33

monochromatic

#184956 #267285 #339BB5 #56B7CF #86CBDD

Accessibility & contrast

On white

3.23

#339BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#339BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #339BB5

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##339BB5	#FFFFFF	#000000	##000000
##339BB5	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A97B6

Deuteranopia (green-blind)

#7889B5

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #339bb5;
/* rgb */ color: rgb(51, 155, 181);
/* oklch */ color: oklch(64.2% 0.100 218.1);

Tailwind

colors: {
  custom: {
    50: '#7db8cb',
    500: '#339bb5',
    950: '#000000',
  },
}

SCSS

$custom: #339bb5;
$custom-light: #7db8cb;
$custom-dark: #000000;

JSON

{
  "hex": "#339bb5",
  "rgb": {
    "r": 51,
    "g": 155,
    "b": 181
  },
  "hsl": {
    "h": 192,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.64181,
    "c": 0.09976,
    "h": 218.1
  },
  "luminance": 0.27483
}

Semantic roles & 50–950 ramp

primary

#339BB5

secondary

#C68C7D

accent

#6748DF

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #339BB5

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →